Romans 2:27-29 American Standard Version (ASV)

27. and shall not the uncircumcision which is by nature, if it fulfil the law, judge thee, who with the letter and circumcision art a transgressor of the law?

28. For he is not a Jew who is one outwardly; neither is that circumcision which is outward in the flesh:

29. but he is a Jew who is one inwardly; and circumcision is that of the heart, in the spirit not in the letter; whose praise is not of men, but of God.

Romans 2